2004 Ski-Doo REV Series Factory Service Manual, Page 137Get this manual
Section 04 ENGINE Subsection 02 (ENGINE LEAK TEST AND DIMENSION MEASUREMENT)
ENGINE LEAK TEST AND DIMENSION MEASUREMENT
LEAK TEST
The following gives verification procedures for 593 and 793 types of engines
PREPARATION
Remove tuned pipe Install plug over exhaust manifold Remove carburetorsthrottle body assembly (as applicable) Unplug fuel inlet line from fuel rail Insert plugs in intake rubber bootsTighten with existing clamps
A33C1AA
Activate pump and pressurize engine to 34 kPa (5 PSI)Do not exceed this pressure Engine must stand this pressure during minutesIf pressure drops before minutes, check tester kit by spraying soapy solution on pump cylinder, all plugs and fittings If tester kit is leaking, bubbles will indicate where leak comes from If tester kit is not leaking, check engine as per following procedure